How do you make Karel turn left?

To make Karel turn left, the appropriate method to use is the command that specifically instructs Karel to execute a left turn. The command "turnLeft()" is designed for this purpose, allowing Karel to rotate 90 degrees to the left from its current facing direction. This is a basic movement function in Karel programming, enabling the robot to navigate its environment effectively by changing its orientation.

The other options either don't exist in Karel's command set or refer to actions that do not achieve a left turn. Understanding the specific command for turning left is crucial, as it lays the foundation for Karel's movement logic and helps Karel to maneuver through mazes or complete tasks. Familiarity with the commands allows for more complex programming tasks to be undertaken as the student progresses in their understanding of Karel's functions.